Brazil will launch a new high resolution deforestation monitoring system that will be capable of detecting forest clearing under cloudy conditions.

In a statement issued Monday, Environment Minister Izabella Teixeira said INDICAR – Imaging and Radar Deforestation Indicator – is being developed to improve Brazil's already world-class deforestation monitoring capabilities. The system will use data from the Japanese Space Agency's ALOS satellite, which is equipped with both cloud-penetrating radar and optical sensors, enabling Brazil for the first time to measure forest loss when visibility is obscured by clouds. Currently, Brazil monitors deforestation year round but does its annual accounting at the end of July when cloud extent is at a minimum in the Amazon.

Better resolution

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INDICAR will identify areas of deforestation above 10 hectares, an improvement from the Real Time Deforestation Detection System (DETER), which is currently used to detect forest clearing in near real-time, but is limited by its relatively coarse resolution of 25 hectares. Since DETER misses a significant proportion of deforestation, Brazil relies on PRODES (Program to Calculate Deforestation in the Amazon), which can detect areas of deforestation of more than 6.5 hectares, to make the final determination of deforestation on a year-to-year basis. Brazil's National Institute for Space Research (INPE) says that DETER data should not be used to estimate annual rates of deforestation.

Deforestation falls in August

Teixeira said the latest DETER data shows deforestation in the Brazilian Amazon remains low, with 265 square kilometers of forests cleared in August 2010, down 47 percent from the 498 square kilometers cleared in August 2009. Final figures for the August 2009-July 2010 period will be released in November.

(08/31/2010) Deforestation in the Brazilian Amazon is down significantly since last year, according to preliminary estimates released by Brazil's National Institute for Space Research (INPE) and Imazon, a Brazil-based NGO that tracks forest loss and degradation across the Amazon. Analysis of NASA MODIS data by Imazon found some 1,488 square kilometers of forest were cleared during the 12 months ended July 31, 2010, down 16 percent from the same period last year, when 1,766 square kilometers were deforested. Meanwhile analysis by INPE shows an even steeper drop from 4,375 square kilometers in August 2008 through July 2009 to 2,296 square kilometers in the current period, a decline of 48 percent. The discrepancy between INPE's and Imazon's estimates results from differences in how deforestation is tracked.

(06/26/2010) Ending Amazon deforestation could boost the fortunes of the Brazilian agricultural sector by $145-306 billion, estimates a new analysis issued by Avoided Deforestation Partners, a group pushing for U.S. climate legislation that includes a strong role for forest conservation. The analysis, which follows on the heels of a report that forecast large gains for U.S. farmers from progress in gradually stopping overseas deforestation by 2030, estimates that existing Brazilian farmers could see around $100 billion from higher commodity prices and improved access to markets. Meanwhile landholders in the Brazilian Amazon—including ranchers and farmers—could see $50-202 billion from carbon payments for forest protection.

(12/03/2009) Funds generated under a U.S. cap-and-trade or a broader U.N.-supported scheme to reduce greenhouse gas emissions from deforestation and degradation ("REDD") could play a critical role in bringing deforestation in the Brazilian Amazon to a halt, reports a team writing in the journal Science. But the window of opportunity is short — Brazil has a two to three year window to take actions that would end Amazon deforestation within a decade.

(06/02/2009) Accounting for roughly half of tropical deforestation between 2000 and 2005, Brazil is the most important supply-side player when it comes to developing a climate framework that includes reducing emissions from deforestation and forest degradation (REDD). But Brazil's position on REDD contrasts with proposals put forth by other tropical forest countries, including the Coalition for Rainforest Nations, a negotiating block of 15 countries. Instead of advocating a market-based approach to REDD, where credits generated from forest conservation would be traded between countries, Brazil is calling for a giant fund financed with donations from industrialized nations. Contributors would not be eligible for carbon credits that could be used to meet emission reduction obligations under a binding climate treaty.

(04/13/2009) In October 2008 scientists with the Royal Botanical Garden at Kew discovered a host of previously unknown species in a remote highland forest in Mozambique. The find was no accident: three years earlier, conservationist Julian Bayliss identified the site—Mount Mabu—using Google Earth, a tool that’s rapidly becoming a critical part of conservation efforts around the world. As the discovery in Mozambique suggests, remote sensing is being used for a bewildering array of applications, from monitoring sea ice to detecting deforestation to tracking wildlife. The number of uses grows as the technology matures and becomes more widely available. Google Earth may represent a critical point, bringing the power of remote sensing to the masses and allowing anyone with an Internet connection to attach data to a geographic representation of Earth.

(03/31/2009) Satellites have long been used to detect and monitor environmental change, but capabilities have vastly improved since the early 1970s when Landsat images were first revealed to the public. Today Google Earth has democratized the availability of satellite imagery, putting high resolution images of the planet within reach of anyone with access to the Internet. In the process, Google Earth has emerged as potent tool for conservation, allowing scientists, activists, and even the general public to create compelling presentations that reach and engage the masses. One of the more prolific developers of Google Earth conservation applications is David Tryse. Neither a scientist nor a formal conservationist, Tryse's concern for the welfare of the planet led him develop a KML for the Zoological Society of London's EDGE of Existence program, an initiative to promote awareness of and generating conservation funding for 100 of the world's rarest species. The KML allows people to surf the planet to see photos of endangered species, information about their habitat, and the threats they face. Tryse has since developed a deforestation tracking application, a KML that highlights hydroelectric threats to Borneo’s rivers, and oil spills and is working on a new tool that will make it even easier for people to create visualizations on Google Earth. Tryse believes the development of Google Earth is a watershed moment for conservation and the environmental movement.

(01/04/2009) Environmentalists have long voiced concern over the vanishing Amazon rainforest, but they haven't been particularly effective at slowing forest loss. In fact, despite the hundreds of millions of dollars in donor funds that have flowed into the region since 2000 and the establishment of more than 100 million hectares of protected areas since 2002, average annual deforestation rates have increased since the 1990s, peaking at 73,785 square kilometers (28,488 square miles) of forest loss between 2002 and 2004. With land prices fast appreciating, cattle ranching and industrial soy farms expanding, and billions of dollars' worth of new infrastructure projects in the works, development pressure on the Amazon is expected to accelerate. Given these trends, it is apparent that conservation efforts alone will not determine the fate of the Amazon or other rainforests. Some argue that market measures, which value forests for the ecosystem services they provide as well as reward developers for environmental performance, will be the key to saving the Amazon from large-scale destruction. In the end it may be the very markets currently driving deforestation that save forests.

(07/31/2008) Between June 2000 and June 2008, more than 150,000 square kilometers of rainforest were cleared in the Brazilian Amazon. While deforestation rates have slowed since 2004, forest loss is expected to continue for the foreseeable future. This is a look at past, current and potential future drivers of deforestation in the Brazilian Amazon.

CITATION:Rhett A. Butler, mongabay.com (October 11, 2010).

Brazil to launch new deforestation monitoring system that 'sees' through clouds.

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